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Finding the Fourth Proportional to 425,398.80, 587,078.80 and 234,412.22

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Solution

The fourth proportional to 425,398.80, 587,078.80 and 234,412.22 is: 323,504.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,398.80 : 587,078.80 = 234,412.22 : x
  2. Step 2: Convert to fraction form
    425,398.80/587,078.80 = 234,412.22/x
  3. Step 3: Cross multiply
    425,398.80x = 587,078.80 × 234,412.22
  4. Step 4: Simplify right side
    425,398.80x = 137,618,444,822.94
  5. Step 5: Solve for x
    x = 137,618,444,822.94/425,398.80
  6. Step 6: Final answer
    x = 323,504.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.